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Fagor IF-9000-S-MATRIX Manual

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INDUCTION
INDUCTION
Matrix Hob
THE MATRIX HOB
TECHNICAL TRAINING
PRINCIPE
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CU3A5
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MATRIX
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001
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1 -
THE OPERATING PRINCIPLE
.....................................................................................................................................5
1.1. -
Analogy
with the transformer ............................................................................................................................5
1.2. -
Skin effect
.........................................................................................................................................................6
2 -
THE PERFORMANCES ...........................................................................................................................................7
3 -
THE SAUCEPANS…………………………………………………………………………………………………………………………………………………8
3.1. -
Compatible containers …………………………………………………………………………………………………………………………….. 8
4 -
THE MATRIX INDUCTION HOB............................................................................................................................10
4.1. -
Presentation....................................................................................................................................................10
5 -
INSTALLATION......................................................................................................................................................11
5.1. -
Building in .......................................................................................................................................................11
5.2. -
Ventilation .......................................................................................................................................................12
5.3. -
Electrical connection.......................................................................................................................................13
6 -
USE.........................................................................................................................................................................15
6.1. -
Setting the parameters....................................................................................................................................15
6.2. -
Access options................................................................................................................................................16
6.3. -
Safety features................................................................................................................................................17
6.4. -
“RoHS” standard .............................................................................................................................................19
6.5. -
Maintenance ...................................................................................................................................................19
6.6. -
Key to symbols................................................................................................................................................20
7 -
OPERATION...........................................................................................................................................................21
7.1. -
Summary.........................................................................................................................................................21
7.2. -
Touch screen ..................................................................................................................................................21
7.3. -
Filtering ...........................................................................................................................................................22
7.4. -
Rectifier...........................................................................................................................................................23
7.5. -
Inverter............................................................................................................................................................23
7.6. -
Current transformer (cookware recognition)...................................................................................................25
7.7. -
Main components............................................................................................................................................26
7.8. -
Filter board......................................................................................................................................................29
7.9. -
Filter board measurements.............................................................................................................................30
7.10. -
Diagram of the MATRIX induction hob ...........................................................................................................30
7.11. -
Internal arrangement of the power board (generator) ....................................................................................31
7.12. -
MATRIX Maintenance.....................................................................................................................................33
7.13. - Error codes ......................................................................................................................................................35
7.14. - Demo mode .....................................................................................................................................................36
THE MATRIX HOB
TECHNICAL TRAINING
PRINCIPE
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CU3A5
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MATRIX
-
001
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1 - THE OPERATING PRINCIPLE
1.1. - Analogy with the transformer
An induction hob operates due to the electromagnetic properties of most containers used on traditional
hobs.
one can compare this hob with a transformer of which the secondary winding would have been
shorted. A significant internal current arises therein and causes quick heating.
I
1
2
3
4
5
6
TRANSFORMER INDUCTION HOB
Magnetic conductor
1
Saucepan
Secondary winding shorted
2
Saucepan
Gap
3
Glass-ceramic plate
Primary winding
4
Inductor
Magnetic conductor
5
Ferrite
Magnetic field
6
Magnetic field
The saucepan can be compared with a shorted set of concentric whose internal resistance is not zero.
From the function keys, you control the electrical power supply to the transformer primary winding
which generates a magnetic field. This field induces currents at the bottom of the container placed on
the hob. These induced currents heat the container immediately, which transmits the produced heat to
the food inside. Cooking is performed efficiently with almost no loss of energy. The appliance heating
power is pushed to its maximum.
MATRIX INDUCTION
Technical Training
PRINCIPE
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001
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1.2. - Skin effect
An induced current in a metallic mass will only cause significant heating if it flows through a significant
resistor (P=RI
2
). A ferrite saucepan has only low resistivity. This is where a second natural
phenomenon occurs, which is called ‘Skin effect’.
1.2.1. - Definition
The propagation of the high-frequency current is not performed in the same way as a direct current.
Contrary to direct current, where current flows with consistency in a conductor, in HF its density varies
and decreases exponentially as you move away from the conductor surface.
Example on copper wire supplied with high frequency
The current flows predominantly in wire periphery ‘e’. The decrease in
the effective cross-sectional area of the conductor causes an increase
in its resistance.
1.2.2. - Application
At a 20KHz frequency, and for a steel saucepan (magnetic ferritic material), the thickness of the
saucepan in which the induced currents flow is approximately 35 µm. This allows generating a current
in only a part of the saucepan bottom. The resistance becomes significant and the heating consequent
therein.
For a non-ferritic material, such as aluminium, the thickness is approximately 590 µm, the saucepan
behaves then as a quasi-zero resistor (short-circuit), which is prejudicial to electronics. The board will
take this discrepancy into account and will display the phenomenon by making the control panel flash.
Therefore, this type of material is not adapted.
MATRIX INDUCTION
TECHNICAL TRA INING
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001
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COOKWARE
2 - THE PERFORMANCES
2.1. - Compared efficiencies
The efficiency is the ratio that exists between
consumed energy (gas or electricity) and energy
converted into heat. Large differences exist between
induction, range-top appliance, and other cooking
modes. These efficiencies may vary depending on
the diameter and quality of the container used.
2.2. - Exceptional high speed
Thanks to the available power and high efficiency, this hob is much more rapid than an electrical or gas
hob. Time necessary to increase the temperature of two litres of water from 20°C to 95°C:
2.3. - Savings
Removing the container from a source is sufficient to stop the cooking immediately, there is no energy
waste. As long as there is no container on a source, the source does not heat, the power indicator
lights are flashing. This hob consumes thus much less energy than hobs fitted with traditional gas or
electricity hobs.
2.4. - Information
Very flexible to use, it reacts instantaneously to controls. The power available on a source can vary
from 50 to 2800 W (and more in certain cases!)
2.5. - Safety
The induction principle makes that heat is produced directly in the container. The temperature of the
glass top is much lower and risk of burn is reduced, especially for children. Return to 60°C after
boiling of one litre of water:
20
30
40
50
60
70
80
90
Gas
Cast iron
Radiant
Halogen
Induction
10
MATRIX INDUCTION
Technical Training
COOKWARE
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001
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3 - THE SAUCEPANS
3.1. - Compatible containers
Induction requires appropriate saucepans.
As cooking is performed by magnetic field, conductive materials are necessary. A simple means is
used to check whether an implement is compatible or not: A magnet should stick to the bottom.
During cooking, some pans can emit some noise (jangling). This is normal and due to the magnetic
field. There is no risk, neither for the hob, nor for the pan.
The containers compatible with the induction are:
Containers in enamelled steel with or without non-stick coating.
- Advantages:
• Compatibility guaranteed with induction (good efficiency)
• Low noise.
• Wide range of cooking possible.
- Disadvantages:
• Worse heat distribution pan diameters < 230mm.
• Cleaning is more difficult.
• Bad reaction if the pan is empty bottom distortion, possible breaking of the enamel
Cast-iron containers with or without enamelled bottom.
- Advantages :
• Compatibility guaranteed with induction (good efficiency)
• Good heat distribution (with low cooking power).
• Reduced noise of the pan.
• Easy cleaning
• Good to cook lovingly
- Disadvantages :
• The non enamelled bottom may scratch the glass.
• Bad reaction if the pan is empty Cast iron doesn’t move but can break.
• Please note: Do a preheating systematically before a full power cooking
Certain containers in stainless steel: multilayer stainless steel, ferritic stainless steel. Most
stainless steel containers are suitable if they pass the magnet test. (Saucepans, stew pots, frying
pans, deep fryers...).
- Advantages :
• Very good heat distribution (For the pan with a stuck bottom).
• Good reaction if the pan is empty --> Stainless steel becomes blue
• Easy to clean.
• Wide range of cooking.
MATRIX INDUCTION
TECHNICAL TRA INING
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COOKWARE
- Disadvantage :
• Bad heat distribution (For the pan without a stuck bottom).
• Compatibility is not always guaranteed: Some stainless steels give bad results.
• When the hob recognizes a poor reaction of the pan, the power is automatically reduced.
Advice: Use an enamelled pan to do some tests
• The pan is noisier.
Aluminium containers with special bottoms.
• Aluminium containers are used more and more. Unfortunately, the quality and the thickness of the
stainless steel are not always good.
Containers with a thick flat base for uniform cooking have to be decided upon (heat is better distributed).
Glass, earthenware, ceramic, copper and aluminium containers
without special bottoms are not compatible.
• Choose, if possible, containers with very thick bottoms.
• Avoid any containers with rough (non-enamelled cast iron for example)
or dented bottoms that might scratch the plate.
• Don't pull the containers, put them down.
3.2. - Class induction
A "CLASS INDUCTION" marking, mark of excellence, appears on the hob.
By choosing a container bearing the same logo, the consumer will make
sure of the perfect compatibility with his/her induction hob, under normal
operating conditions.
To help the consumer pick, a list of implements tested and approved is appended to the user manual.
INDUCTION
MATRIX INDUCTION
Technical Training
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MATRIX
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001
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PRESENTATION
4 - THE MATRIX INDUCTION HOB
4.1. - Presentation
A unique 2600cm² cooking space will take up to 5 cooking vessels.
The user may position and use simultaneously up to 5 cooking vessels (frying pan, saucepan,
sauteuse, steamer or fish steamer) whatever size, shape or purpose.
There are lines outlining (standard) the heating area.
Intuitive and easy to use, the MATRIX hob has a large, slightly raised colour touch screen. It enables
precision control and provides all information relating to cooking, such as the position of the cooking
vessels, the power options, setting of the cooking time, locking, residual heat, etc.
The MATRIX hob housing is on two levels: a first level to attach it and a second that facilitates
cooling of the electronics.
MATRIX INDUCTION
TECHNICAL TRAINING
INSTALLATION
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5 - INSTALLATION
5.1. - Building in
A minimum dimension must be measured from the rear and side walls.
Protection of cut sections: The particle wood used to make the work tops swells relatively quickly
when coming into contact with humidity. Varnish or special adhesive should be applied to the edge of
the cut out to protect it from steam or condensation that could appear below the work top.
A joint provides the seal with the worktop. It should be glued below the edges of the hob.
After the work top has been cut out and the seal around the hob has been installed, place the hob
directly into its position. The vitroceramic top should rest on the edges of the work top in contact with
the seal. (Do not use mounting brackets to secure the hob. This could cause mechanical stress and
damage to the vitroceramic top).
MATRIX INDUCTION
Technical Training
INSTALLATION
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MATRIX
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001
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5.2. - Ventilation
A great many After-Sales Service problems relate to poor ventilation. The induction hob is fitted with
cooling fans that suck air in through the rear and push it out towards the front. During installation, the
recommendations made in the user instructions must be followed scrupulously.
Depending on the layout of the kitchen, the hob should be installed:
Above a unit with a door or drawer
Above an oven of the same brand
Above an oven of another brand
Above a dishwasher
In order to deal with the many ventilation problems, the MATRIX
induction hob is fitted with housing that has a small recess on the
front side. This has vent holes to allow better evacuation of the
warm air.
Above a unit with door or drawer
Installation must allow intake of fresh air through the rear and output through the front.
Above an oven of the same brand
Installation must allow intake of fresh air through the rear
and an outlet at the front of 4 mm minimum.
Above an oven of another brand
Installation must allow intake of fresh air through the rear, an
outlet at the front of 4 mm minimum and the oven must be
insulated from the hob (5 cm minimum).
Above a dishwasher
The top of the dishwasher must be covered
with an insulation sheet, reference 77X7781.
A fresh air inlet must be available at the
back and a front outlet of 4 mm minimum.
MATRIX INDUCTION
TECHNICAL TRAINING
INSTALLATION
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5.3. - Electrical connection
The maximum admissible power of the cable must be respected, relating to the length of the
cable and the power of the hob. Indeed, the longer the cable, the lower the transported power.
Maximum admissible theoretical power (in W) of the cables in relation to the length of
the connection and to the power
Cross-section in mm² 0.5 0.75 1 1.5 2.5 4 6 10 16
Maximum amperage (A) 3 6 10 16 25 30 40 60 80
The power of the hobs has increased considerably. The induction hobs may be fitted with cables
containing wires of different cross-sections.
Total power of the hob
Cross-section of wires
Circuit
protection (fuse)
Power 3.1 KW
1.5 mm²
16 A
Power 3.6 KW
1.5 mm²
16 A
Power 4.6 KW
2.5 mm²
16 A
Power 5.9 KW
2 x 2.5 mm² or 4 mm²
16 A
Power 7.2 KW
2 x 2.5 mm² or 4 mm²
32 A
Power 10.8 KW
1.5 mm² and 4 mm² or 2.5 mm² and 4 mm²
2 x 32 A
The MATRIX hob is fitted with two power supply cables.
One supply cable of 5 wires of 2.5 mm² with line connection protected by a 32A safety device.
One supply cable of 3 wires of 2.5 mm² with line connection protected by a 16A safety device.
5-WIRE SUPPLY CABLE 3-WIRE SUPPLY CABLE
16
A
MATRIX INDUCTION
Technical Training
INSTALLATION
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001
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Option of the single phase connection of the supply cables on two lines, one 16A and one 32A.
Option of the single phase connection of the supply cables on a 63A line.
If the user has a three-phase supply, the connection may be distributed over three phases by
separating the black and grey wires of the 5-wire cable (320 volts between phase and neutral). In
this case, it is best to work with a 16A protection.
r
Warning! Under no circumstances should the MATRIX hob be connected in three phase at the risk of
a blow-out.
MATRIX INDUCTION
Technical Training
USE
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MATRIX
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001
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SELECTIONNEZ VOTRE MODE DE CUISSON OU UN PARAMETRE
6 - USE
The “MATRIX” hob is fitted with a touch screen. When it is first switched on,
the display lights up and the brand logo appears.
6.1. - Setting the parameters
First of all, the language of use must be set for the hob.
There are several options: French, German, Portuguese, Spanish,
Dutch, Danish, English, Italian, Polish, Czech. Next, confirm by
pressing “OK”. It is possible to go back at any time by pressing on
the back arrow to the bottom left of the touch pad.
Next, set the time and confirm by pressing “OK”.
It is possible to adjust the light intensity of the display.
Select the line, “BRIGHTNESS” and adjust the brightness using the cursor.
6.2. - Access options
The “MATRIX” hob offers three cooking mode options.
1. SOLO mode
2. PIANO mode
3. EXPERT mode
MATRIX INDUCTION
TECHNICAL TRAINING
USE
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001
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TOUCHEZ LECRAN, AJOUTEZ UN RECIPIENT
6.2.1. - SOLO mode
With this mode, the whole heating area is at the
same power. The power is pre-set in the factory at 4
(keep warm level), but it is possible to change this
parameter at any time.
In this mode, there may be a maximum of five
detectable cooking vessels in the zone. The time
parameter may be adjusted for each vessel.
6.2.2. - PIANO mode
This mode enables the hob to be separated into
three different heating areas with different power
levels and time settings. The power is pre-set in the
factory for the three levels at 4 (keep warm), 8
(simmer) and 15 (hot), but it is possible to change
these parameters at any time.
There may be a maximum of five detectable
cooking vessels over the whole of the three zones.
If a pan is placed across two heating zones,
the hob will generate an average power for the two
zones.
6.2.3. - EXPERT mode
This mode enables 5 vessels to be placed over the
total hob area and the power (1 to 15) and time
parameters to be set for each vessel. It is possible
to move the vessel around the zone whilst
maintaining the selecting parameters in the
memory.
MATRIX INDUCTION
Technical Training
USE
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001
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6.3. - Safety features
6.3.1. - Residual heat
The “MATRIX” induction hob is fitted with a “Hot surface” display.
After intensive use, the cooking area may remain hot for a few minutes.
A residual heat indicator is displayed during this period. Do not put your hand on the
zone.
The touch screen switches off after approximately 2 minutes when the vitroceramic surface is
cold.
The residual heat indicator goes out.
6.3.2. - Automatic stop
As soon as the pan is removed from the top, the power supply is cut.
If a pan has been left on the heat inadvertently, an
“Automatic Stop” safety device may be activated. The
authorised operating time varies depending on the power
selected. “Auto Stop” is displayed and a beep sounds
for about 2 minutes. Press an active button on the touch
screen to clear the information.
6.3.3. - Child safety function
To lock or unlock your hob, press the button for 3 seconds
The lock blocks all the buttons except the hob stop function .
6.3.4. - Clean lock (Hob control lock)
This function enables the hob button pad to be locked so as to clean the touch screen without affecting
the controls.
Pressing the button for 1 second locks the hob. It unlocks automatically after a pre-defined time (±
30s).
6.3.5. - Maximum weight accepted by the vitroceramic top
The vitroceramic top may take a weight of 40kg over a contact surface of 10cm.
Power 9
levels
Power 12
levels
Power 15
levels
Auto stop
after
1 to 4
1 to 7
1 to 9
8 hours
5 to 7
8 to 11
10 to 14
2 hours
8 to 9
12 and Max
15 and
boost
1 hour
MATRIX INDUCTION
TECHNICAL TRAINING
USE
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6.3.6. - Information hold
Power cut: loss of information after four minutes.
Absence of pan or incompatible vessel: cooking area switched off after one minute.
Start/stop: if no further information is given, cooking area switched off after 30 seconds.
6.3.7. - Protection against overflows
In the event of a liquid overflowing, or of a metallic object or wet cloth being put on the touch screen,
the hob switches off. Clean the screen or remove the object and recommence cooking.
Overflow spilling onto the buttons.
Damp cloth lying on the control buttons.
Metallic object placed on the control buttons.
6.3.8. - Automatic cookware detection
The induction hob is fitted with an automatic cookware detector.
Cookware test: - Place your vessel on a cooking area, power 4.
- If the display remains steady, your cookware is compatible.
- If the display flashes, your cookware is not compatible with induction cooking.
Magnet test: If a magnet sticks to the base of the cooking vessel, it is compatible.
Do not place any lids on the hob. It could be treated as a cooking vessel.
Do not place cooking vessels touching each other, otherwise they may not be recognized by the
hob (advised distance: 4cm).
6.3.9. - "Small Items" safety
A small pan, a fork, a spoon or a ring left on the hob is not detected as a piece of cookware. The
display flashes and no heat is produced.
6.3.10. - Pacemakers and active implants
The hob operates in compliance with currently applicable standards concerning electromagnetic
disturbances. Thus the induction cooking hob perfectly satisfies all legal requirements (89/336/EEC
directives). It was designed not to disturb the functioning of other electrical appliances so long as they
are also compliant with these same regulations. An induction hob generates magnetic fields in its
immediate surroundings.
In order to avoid interference with a pacemaker, the pacemaker must be designed in compliance with the
regulations that apply to it. For all information regarding the compliance or otherwise of a pacemaker, the
consumer should contact the manufacturer or general practitioner.
6.3.11. - Temperature limiter
Each cooking zone is equipped with a safety sensor that constantly monitors the temperature of the
bottom of the cookware. The purpose is to protect the user and the hob from abnormal operations, for
example, heating an empty pan.
The principle of this safety mechanism is to check constantly the temperature of the base of the vessel
with a sensor (NTC) fitted below the vitroceramic so as to adjust the power and stabilise the
temperature at 300°C . This temperature is programmed as it is below the degradation limit of PTFE
(Non-stick coating of market utensils). Degradation is observed from 340/350°C.
MATRIX INDUCTION
Technical Training
USE
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6.4. - “RoHS” standard
Since June 2006, the electronics cards fitted to induction hobs have met the RoHS standard.
Many electrical and electronic devices may contain dangerous substances targeted by the “RoHS”
European directive (restriction of the use of substances that are harmful to the environment).
The European directive 2002/95/EC transposed to French law through the decree DEEE 2005-829 of
20th July 2005, as from 1st July 2006 strictly limits the use of 4 heavy metals (lead, cadmium,
chrome, mercury) and two brominated flame retardants (PBB = polybrominated biphenyls and PBDE
= polybrominated diphenyl ethers) in the manufacture of 8 categories of electrical and electronic
equipment.
6.5. - Maintenance
Vitroceramic is a silica-based glassy material that does not
expand like glass. Its dimensions hardly alter until 750°C
since a portion of the molecules contained in it expand with
heat, whilst an equal number contract. One of the
characteristics of this material is that it is a poor heat
conductor, hence it limits heat loss.
The smooth surface of the vitroceramic and the touch-sensitive controls facilitate cleaning.
Difficulties encountered in cleaning radiant and halogen zones do not generally apply to induction hobs
in view of the low temperatures reached by the hob. However, a pan with a wet base placed on the
cooking zone will leave limescale marks. Sugary splatters must be cleaned immediately as it will
caramelise when in contact with the hot vitroceramic. As it cools, it contracts and damages the surface.
Finally, the vitroceramic hob is not a work surface and therefore is easily scratched.
Do not leave dirt on the hot surface
Sugar-based marks and splatters should be removed immediately as they can damage the
vitroceramic
Do not rub surface with abrasives
Do not use the cooking hob as a work surface
Never leave paper or aluminium containers on the cooking area
Avoid sliding the cookware as this could cause scratch marks (Be careful of grit, etc.)
Avoid knocking the edge of the vitroceramic top or the touch-screen glass as these could break.
Cleaning products
Burnt fat on the top of the vitroceramic may be easily cleaned using specific products approved and
handled by the After Sales Service:
94X3140: Scrubbing sponge + silicone polishing gel + soft cloth.
AS0000396: Gel re-fill for the above products.
71X4751: Scraper.
SELE
C
TIONNEZ VOTRE MODE DE CUIS SON OU UN
PARAM
ETRE
MATRIX INDUCTION
TECHNICAL TRAINING
USE
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6.6. - Key to symbols
MATRIX INDUCTION
TECHNICAL TRAINING
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PRINCIPE
7 - OPERATION
7.1. - Summary
The MATRIX hob consists of a filter board to which are connected the two power supply cables. The
filter board supplies the three power boards with 230V
~
and the control board unit with 3V- and 12V-.
The control unit is made up of a screen, a faceplate, a keypad card and a master card that inter-
communicate. Information regarding the temperature, power and safety functions of the three power
boards is passed to the control unit managing them.
7.2. - Touch screen
The touch screen is based on capacitive technology:
An indium-based, rare metal sheet, is placed below the glass of
the touch pad. A steady current is diffused across the surface
of the screen by four electrodes placed at the corners. When
the user touches the screen, part of the current is absorbed by
the finger. The contact point is then calculated in relation to the
value of the current at the four corners of this screen. It is
possible to measure and determine the coordinates of the
contact point at any time using a keypad card that processes all
the data.
FILTER
BOARD
MASTER
KEYPAD
SCREEN
FACEPLATE
POWER BOARD
POWER BOARD
POWER BOARD
N1 L1 N2 L2 N3 L3
L1
L2
L3
N
N
N
CONTROL BOARD
A
AAA
~
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Technical Training
OPERATION
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7.3. - Filtering
The mechanism can generate a large amount of high frequency interference. To ensure a minimum
level of interference, a large filtering device is used. It enables induction hobs to become
environmentally-friendly devices whose level of interference is lower than that of a television set.
The MATRIX hob filter is a board found at the supply inlet. This filter board carries out several tasks
and its components are adapted in relation to their task:
They protect against operational over-intensity
They eliminate incoming and outgoing interference
They eliminate power surges (voltage peaks)
They authorise the supply to the generators and are controlled by the control board.
For this, the same components are nearly always used: Filter capacitors, fuse(s), VDR, high
inductance induction coil, control relay and an essential earth connection.
The VDRs (Voltage Dependent Resistor) become busy at 275 or 420 Volts (depending on the
model) and protect against overvoltage of components that are situated on the same supply.
The fuse preventing excess currents works using a restrictor on the board track (fuse track).
There are actually two 16A series fuses.
The induction coils act as “buffers”, only allowing low frequencies through. Their action is
supplemented by the capacitors whose value changes in relation to the assembly.
The earth connection made by a screw and a combination of capacitors, helps to remove the
“residual” high frequency interference.
The filter retaining screw has a vital role. It is essential that it is
replaced when work is carried out.
MATRIX INDUCTION
TECHNICAL TRAINING
OPERATION
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325 V
325 V
condensateur
Condo.
Diode
Transistor
7.3.1. - Structure of the filter board
7.4. - Rectifier
To supply the inductors, a high frequency must be applied to them. To increase from 50Hz to 38KHz, the
supply voltage must first be rectified using a diode bridge (Graëtz). A 3µF filter capacitor is linked in order
to attenuate the high frequency signals and to smooth the output voltage of the rectifier. As shown in the
illustration, the rectifier output voltage is approximately the voltage of the supply peak (or around 325V –
when no inductor is supplied). This voltage drops during operation.
7.5. - Inverter
The inverter helps to transform a continuous signal into an
adjustable frequency alternating signal. This inverter (new
typology) is made up of a single IGBT and a resonance
capacitor. The freewheeling diode is built into the IGBT
transistor.
The transistor is controlled by a generator whose frequency
varies between 28 kHz and 38 kHz depending on the power
required.
CONTROL
RELAY
VDR
SWITCHED
-
MODE POWER
SUPPLY
EARTH
SCREW
CAPACITORS
INDUCTION COILS
+ CAPACITORS
MATRIX INDUCTION
Technical Training
OPERATION
- 24 -
CU3A5
-
MATRIX
-
001
-
For the MATRIX hob, the power stage is made to operate at high frequencies and voltages. The transistors
heat up rapidly. The purpose of the fans and the radiator on the power board is to cool the electronics,
particularly the IGBT transistors.
Operation of the inverter
The operation of the inverter on the MATRIX hob is totally different from that of the old generation induction
hob. The power board is equipped to drive twelve inductors. It can control several inductors at the same time
and can offer different power levels.
Each inverter drives an inverter. This new configuration operates as follows:
Phase 0
Idle
The transistor behaves like an open switch.
There is no voltage to the inductor and
capacitor terminals. The transistor is not
controlled.
The capacitor is parallel to the inductor.
C
Diode
Transistor
Phase 1
The transistor is controlled and behaves like a
closed switch.
A current therefore passes through the
inductor via the closed transistor up to
maximum voltage.
The capacitor is loaded.
Phase 2
Positive half-wave
The transistor is blocked (transistor open) and
the inductor forces the current into the
capacitor which is parallel.
This phase ends when all the energy stored in
the inductor has been completely transferred
into the capacitor.
When this happens, the assembly goes
through 0.
Phase 3
Negative half-wave
The energy stored in the capacitor is sent to
the inductor.
The transistor is still open. The diode blocks
the current which moves in the opposite
direction to the inductor.
When the current passes through 0, another
cycle starts up (return to phase 1).
Available power
• The power is distributed according to the number of inductors used. Each inductor is able to supply
a maximum of 900 Watts, according naturally to the quality of the material and the diameter of the
cooking vessel.
• When several inductors are used, they are controlled in accordance with the power requested and
alternately or at the same time depending on the instantaneous power available (3600) through the
generator.
• The power of the inductor changes in accordance with the frequency: 38Khz for 300W to 28Khz for
3600W. Below 300W, variations are made in switched mode (on-off).
MATRIX INDUCTION
TECHNICAL TRAINING
- 25 -
CU3A5
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MATRIX
-
001
-
OPERATION
7.6. - Current transformer (cookware recognition)
On the MATRIX board, each power line is fitted with a current transformer. This helps to detect the
presence of cookware or small item.
The current transformer delivers a current to the secondary that is proportional to the primary. When a
vessel is put on the cooking area, the magnetic field is closed and the electronics decide to supply the
inductor and generate power.
The transformer in series with the inductor delivers a current to the primary and generates a
proportional current to the secondary. This current is sent to the microcontroller for interpretation.
Current analysis
Analysis and interpretation of the current by the microprocessor.
Weak secondary current:
- Cookware of diameter less than 100 mm
- Small item, knife, fork, etc.
The electronics do not
authorise heating and display a
flashing question mark.
Secondary current too great:
- The material of the base of the vessel is not suitable or
incompatible.
The electronics do not authorise heating and display a
flashing question mark.
Secondary current compliant:
The electronics authorise heating and display
a cross on the keypad.
Vessel detected with optimum heating result.
Pan detected with non optimum heating result (heating area limit or low efficiency vessel
or too small a diameter); in this case, a flashing sign is displayed.
Search noises or detection of cookware: “repeated clicking”. The “pan position” check is
carried out every 2 minutes.
MATRIX INDUCTION
Technical Training
OPERATION
- 26 -
CU3A5
-
MATRIX
-
001
-
7.7. - Main components
Description Function Characteristics
SUPPLY CABLES
To supply the MATRIX hob which has a
power of 10.8kW, the two supply cables
must be connected.
• 1 x 16A supply cable, 3-wires,
2.5mm²
• 1 x 32A supply cable, 5-wires,
2.5mm²
For the 5-wire cable:
Blue / brown = Neutral
Black / grey = Phase
Green / yellow = Earth
FILTER BOARD
The filter boards helps to filter incoming
and outgoing interference. It is connected
to the two supply cables.
It supplies the three power boards and the
display board unit.
• 230 volt supply input
• 3 x 230 volt outlet supplies
• 1 x 12 volt keypad board supply
• 1 x 3/3 volt capacitive faceplate
supply
KEYPAD BOARD
The keypad board acts as an interface
between the capacitive faceplate and the
control board.
• 8-wire flat cable with 3.3 volt
polarising slot. Connected to the filter
board.
• 5-wire connector with 3.3 volt and 12
volt polarising slot connected to the
filter board.
• 3-wire connector connected to the
right power board.
CAPACITIVE FACEPLATE
Fitted with a touch screen.
It sends information to the keypad board.
• 5-wire connector between the
faceplate and the keypad board.
MATRIX INDUCTION
TECHNICAL TRAINING
- 27 -
CU3A5
-
MATRIX
-
001
-
OPERATION
Description Function Characteristics
POWER BOARD
The power board is for managing most
functions:
- Rectification
- Supply to high frequency inductors
- It is fitted with a dual core
microprocessor. 1 for power and 1 for
safety.
- The MATRIX hob has three power
boards.
The inductor supply frequency varies
between 28 kHz at maximum power and
38 kHz at 300W.
The setting between 50 and 300W is
obtained by switching the supply.
A power board enables twelve inductors
to be supplied.
It can deliver a maximum power of 3600
Watts.
INDUCTOR
This is a coil unit situated beneath the
vitroceramic and whose task is to spread
the magnetic field to the pan.
The coils are assembled in threes on a
plastic plate.
Ferrites are placed in its lower section.
Their task is to direct the magnetic field
towards the pan.
The coil unit consists of a bundle of
several strands.
• Diameter 9 cm
• Maximum power 900W for one
inductor
The cooking vessel must have a minimum
diameter of 10 cm.
INDUCTOR DISK
This disk helps to protect the inductor
from the heat of the cooking area.
• Material:
Thermatex
(Thermal ceramic refractory fibre)
Mixture of non crystalline mineral fibres.
Maximum temperature > 1000°C
RIGHT INDUCTOR PLATE
There are three plates, each equipped
with 12 inductors.
It is also a screen between the power
board and the inductors (protection
against electro-magnetic fields).
Centring pins clipped to the housing
ensure that it is correctly positioned.
• Aluminium plate
Electrostatic safety mechanisms Protection against power cuts.
MATRIX INDUCTION
Technical Training
OPERATION
- 28 -
CU3A5
-
MATRIX
-
001
-
Table of main components continued
Description Function Characteristics
TEMPERATURE SENSOR
The temperature sensor is a NTC resistor.
Its function is to detect any overheating of
a pan particularly where the pan is empty
(no heat dissipation)
In the event of overheating, load shedding
occurs through the power board until the
cooking area has reached a moderate
temperature. This load shedding is
transparent for the user.
The temperature sensor is not used for
detecting the presence of a cooking
vessel.
The NTC is housed in a rubber support
placed at the centre of the three inductors.
It is connected to the edge of the power
board.
• Value: 110 kΩ at 25°C
Check that each NTC is correctly
positioned.
FAN
Cools the electronic components situated
in the hob.
Note: the supply voltage of the fan varies
according to the temperature detected by
the NTC1 of the power board.
- 8V for 60°C
- 12V for 80℃
Reminder: the temperature indicated by
the power board NTCs is not the ambient
temperature of the product but the
temperature on the copper.
They are situated next to the diode bridge
and next to the microprocessor. NTC1
and 2 = 2.5KΩ at 25°C
• Power supply: 12 Volts - continuous
• Amperage: 0.30 A
SILICONE MOUNTINGS
Silicone mountings placed on the centring
pins act as buffers for the inductor plate.
They help to hold the plate and inductors
correctly against the vitroceramic top so
as to obtain the best level of power.
(Risk of breakage when reassembling the
vitroceramic top).
• Material: silicone
Electrostatic safety mechanisms Protection against power cuts.
MATRIX INDUCTION
TECHNICAL TRAINING
- 29 -
CU3A5
-
MATRIX
-
001
-
OPERATION
7.8. - Filter board
The MATRIX hob is fitted with two supply cables as it has a maximum power of 10.8KW.
It is important to connect the supply cables correctly for the efficient operation of the hob.
One supply cable of 3 x 2.5mm² 16A wires is connected to the filter board
between:
• N1 (blue) and L1 (brown) supply to the right generator (Gen1).
One supply cable of 5 x 2.5mm² 32A wires is connected to the filter board
between:
• N2 (blue) and L2 (grey) supply to the central generator (Gen2).
• N3 (brown) and L3 (black) supply to the left generator (Gen3).
At the filter board outlet there are three 230V supplies to supply the generators.
The filter board is also fitted with two “board edge” connectors for supplying the
display board and the touch screen faceplate.
7.8.1. - Touch screen
This is mounted directly below the vitroceramic top. It consists of a display board and a touch faceplate.
N1 (blue)
L1 (brown)
N2 (blue)
L2 (grey)
N3 (brown)
L3 (black)
Right generator
N (blue)
L (black)
Central generator
N (brown)
L (black)
Left generator
N (rouge)
L (black)
8-wire flat cable
Supply to
touch screen
5-wire connector
Supply to
display board
32A
3-wire connector
to the right generator
MATRIX INDUCTION
TECHNICAL TRAINING
- 30 -
CU3A5
-
MATRIX
-
001
-
OPERATION
7.9. - Filter board measurements
7.10. - Diagram of the MATRIX induction hob
230V 50Hz
Between L
and N
230V 50Hz
3.3V
–
between 1
and 5
12V
–
3.3V
–
between 1
and 2
MATRIX INDUCTION
Technical Training
- 31 -
CU3A5
-
MATRIX
-
001
-
ORGANISATION
7.11. - Internal arrangement of the power board (generator)
The MATRIX hob is fitted with three power boards.
A power board consists of:
A supply
A rectifier bridge.
Twelve IGBT transistors, each controlling an inductor.
Four NTCs measure the temperature of three inductors.
Two fans are supplied with 12 volts, their speed may vary in accordance with the temperature
measured by CTNE 1 (NTC) and CTNE 2 (NTC) (on the electronic board close to the rectifier).
1 dual core microprocessor (two microprocessors).
One microprocessor for power and another for safety.
12V
– FANS
SUPPLY
CTN
E 1
CTNE 2
CTNI 1
CTNI 2
CTNI 4
CTNI 3
DISPLAY
OTHER POWER
BOARD
MATRIX INDUCTION
TECHNICAL TRAINING
- 32 -
CU3A5
-
MATRIX
-
001
-
OPERATION
7.11.1. - The power board.
Inductors and CTN are assembled on 3 trays. One to the right, one in the center and one to the left to
facilitate the connection. Every inductor is located from 1 to 12 by tray.
Three power boards are interconnected. Each of them manages 12 inductors and 4 CTN. Three power
board are cabled in the same way.
Example of cabling of the right generator.
FANS 12V
–
ALIMENTATION
NTC
INDUCTORS
10-11-12
NTC
INDUCTORS
7-8-9
NTC
INDUCTORS
4-5-6
NTC
INDUCTORS
1-2-3
TOWARD
POWER
TOWER POWER
POARD OR
DISPLAY
LEFT
CENTER
RIGHT
MATRIX INDUCTION
TECHNICAL TRAINING
- 33 -
CU3A5
-
MATRIX
-
001
-
OPERATION
ENTREZ LE CODE SAV
3708
7.12. - “MATRIX” maintenance
The “MATRIX” hob has a troubleshooting utility. When there is an operating fault with the hob, an error
message appears on the screen (Technical problem, please contact after-sales service).
The technician can run a Troubleshooting Program (self-test) on the hob, to quickly identify the cause
or causes of the malfunction.
Important instructions
(If possible) connect an ammeter to the two supplies to the hob.
Run the whole troubleshooting program.
Make a note of any anomalies observed during the program.
Then, check and replace any defective component(s), if necessary.
Check that the appliance operates correctly by running the troubleshooting program again.
Conditions for starting the program
This test can only be done if power is supplied to the display and it is functional.
To enter test mode, press the “SET-UP” button.
Then press the “TROUBLESHOOTING” button. .
To access the “MATRIX” hob's troubleshooting program, an after-sales code must be entered on
the numeric keypad.
This code is:
3708
,
confirmed by press on “OK”.
There are two troubleshooting sequences that may be carried out.
o Hob status
- This test checks all the hob’s electrical and
electronic components.
o Inductors test
- This tests each of the inductors,
one after the other.
MATRIX INDUCTION
TECHNICAL TRAINING
- 34 -
CU3A5
-
MATRIX
-
001
-
OPERATION
7.12.1. - “MATRIX” hob troubleshooting program
Action and display Result
Enter the troubleshooting program.
Press the line:
Hob status
• Test of all the hob’s components
Continue the troubleshooting program
Software version test
Power #1, #2 et #3
the position of the items in the
display corresponds to the location
of the boards in the product.
“Keyboard” display software
version test
"Master” display configuration test
• The software version for the three power boards is
displayed. Make a note of the readings.
• The display software version is displayed.
• The display board configuration is displayed.
• Make a note of the readings.
• “AUTOTEST” is displayed
“AUTOTEST” in green = no fault
“AUTOTEST” in orange = fault present
Continue the troubleshooting program
Press AUTOTEST once
• Access to the faults display
Continue the troubleshooting program
Faults display
0
No fault
1
fault
• Faults displayed in three columns, relating to the
position of the three power boards in the hob.
Continue the troubleshooting program
Mains voltage
Mains synchronisation
Fan
Microprocessor safety
Power board NTC
Inductor NTCs
• 0 displayed = no fault
• 1 displayed = fault found
Troubleshooting program complete
VOLT
00
SYNC 0
FAN 0
STOP 0
NTCE1 0000
NTCE2 0000
NTCI1 0000
NTCI2 0000
NTCI3 0000
NTCI4 0000
MATRIX INDUCTION
TECHNICAL TRAINING
- 35 -
CU3A5
-
MATRIX
-
001
-
OPERATION
7.13. - “Error codes in the “MATRIX” induction hob
Action and faults displayed Result
Mains voltage fault
Mains overvoltage, check the mains supply, filter board
and mains cable.
Mains voltage fault
Mains under-voltage, check the mains supply U
eff
< 170V,
filter board and mains cable.
Mains synchro fault
Mains synchro signal absent, check the mains cables, the
filter board, the display assembly and the cabling.
Fan fault
Fan blocked or disconnected, check the 8/12V supply
voltage and the cabling
Microprocessor safety
The microprocessor has gone into safe mode, check the
supply voltage, the filter board, the cabling, the fans and the
installation.
NTC1 in short circuit, check the NTC value (2.5KΩ at
20°C)
NTC1 cut, check the NTC’s value (2.5KΩ at 20°C)
NTC1 fault on the power board on the
rectifier side.
Circuit board overheating, check the value of NTC1
(2.5KΩ at 20°C), the fans and the installation.
Short circuit in NTC2, check the NTC value (2.5KΩ at
20°C).
NTC2 cut, check the NTC’s value (2.5KΩ at 20°C).
NTC2 fault on the power board on the
microprocessor side.
Circuit board overheating, check the value of NTC2
(2.5KΩ at 20°C), the fans and the installation.
Inductor NTC faults (one NTC for three inductors
NTCI1 for inductor position 1-2-3 / NTCI2 for inductor position 4-5-6
NTCI3 for inductor position 7-8-9 / NTCI4 for inductor position 10-11-12
Short circuit in NTC, check the value of the NTC
(110KΩ at 20°C). Check the location, connection and
cabling.
NTC cut, check the value of the NTC (110KΩ at 20°C).
Check the location, connection and cabling.
NTC overheating, check the value of the (110KΩ at
20°C). Check the location, connection, cabling, use and
installation.
Inductor NTC fault
NTCI1 or NTCI2 or NTCI3 or NTCI4
NTC fault, check the value of the NTC (110KΩ à 20°C).
Check the location, connection and cabling.
NTCI1
1000
NTCI1
0100
NTCI1
0010
NTCI
1
0001
NTCE1
0100
NTCE1
0010
NTCE2
0001
NTCE1
0100
NTCE1
0010
NTCE1
0001
STOP
1
FAN
1
SYNC
1
VOLT
10
VOLT
01
MATRIX INDUCTION
TECHNICAL TRAINING
DIAGNOSTIC
- 36 -
CU3A5
-
MATRIX
-
001
-
7.13.1. - “DEMO” demonstration mode.
The “MATRIX” hob has a “DEMO” mode. This mode allows the hob to be configured for cooking operations
with the display and scrolling of the parameters on the touch screen but without any heating. For example,
presentation when the appliance is installed in a kitchen or in a showroom.
Conditions for starting the program
This test can only be done, if there is power to the display and it is functional.
To enter test mode, press the “SET-UP” button.
Then press the “HOB DEMO” button. .
To access “DEMO” mode, it is necessary to enter a code in
the numeric keypad.
This code is:
8019,
confirmed by press on “OK”.
“DEMO” displayed in the touch screen.
Automatic scrolling in the display of the hob’s various
functions.
To exit “DEMO” mode, disconnect both the mains cables and then re-connect them for access to
the display:
•
••
• Continue “DEMO” mode
•
••
• Exit “DEMO” mode.
… 27 …


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